Conn Precision 3 vs Conn Simone Mantia 11
the Conn Precision 3 features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Precision 3
• Trombone
GeneralCup diameter—
Best suited for
Musicians with large lips; all kinds of band work
Full round tone; ideal for large lips
vs
Mouthpiece B
Conn Simone Mantia 11
• Trombone
GeneralCup diameter—
Best suited for
All-around trombone and euphonium
Narrower cup than Model 10; all-around use
Which is better?
Both mouthpieces are categorized as "General" — the physical dimensions above will determine which suits your embouchure and playing style better.